Dorchester zip code
Zip code in Dorchester, IA
The location Dorchester belongs to Allamakee County, state of Iowa. Dorchester has been assigned with the zip code 52140.
Dorchester is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 52140 | STANDARD | 440 |
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